She is the latest person to rail against a mollycoddled generation who have turned universities into “safe spaces” to avoid testing their ideas in the crucible of debate and called on conference attendees to “make jazz hands” because clapping is too traumatic for their sensitive souls.

“I think every business is trying to target millennials,” she said in an interview with Luxury Listings.

“But who are millennials? Now we are finding out that they are living with their parents.

“They don’t have the initiative to go out and find a little apartment and grow a tomato plant on the terrace.

“I understand the plight of younger people. The economic circumstances out there are very grim. But you have to work for it. You have to strive for it. You have to go after it.”

Martha’s career began when she landed a job as a model. She then went on to become a stockbroker before launching a cookbook which turned her into a lifestyle expert and TV personality.

She is now worth about £166million.

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“I got married at 19 and I immediately got an apartment and I fixed it up,” Martha added.

“I was very proud of everything I did. I got the furniture at auctions for pennies. Beautiful furniture. My apartments were lovely and homey and comfortable.”

She has been in discussions with restaurateur owner and television star David Chang, who told her to pass on her knowledge to the youth of today.

“David Chang kept saying, ‘Martha, you know so much and the millennials have to know this stuff!” she added.

“They don’t know anything and they have to learn. They want to learn but they have grown up without teachers.

“They know how to make money and how to develop software, but they don’t know how to plant a tree. They don’t know how to grow spinach.”

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